Temperature Rise on External Root Surface during Laser Endodontic Therapy using 940 nm Diode Laser: An in vitro Study
Year: 2011
Type: article
Abstract: Objective: The objective of this study was to investigate the rise in temperature on the external root surface during 940 nm diode laser assisted root canal therapy. Materials and methods:A total of 120 human single rooted extracted teeth were included in the study.The root canals were enlarged and laser irradiation was performed at four different settings (1 W continuous mode, 1 W gated mode 10/10, 2 W continuous mode and 2 W gated mode 10/10).The rise in temperature was measured at apical, middle and cervical thirds.The temperature changes were evaluated by a thermocouple.The threshold temperature rise of 7ºC is commonly considered as the highest temperature limit biologically acceptable to avoid periodontal damage.Results: The mean temperature rise on external root surface in our study was below 7ºC in all parameters and all portions of root surface. Conclusion:The 940 nm diode laser at 1 W CM, 1 W gated 10/10, 2 W CM and 2 W gated 10/10 can be considered safe for use for laser assisted root canal therapy.
Authors: Suchetan Pradhan, Rohit Karnik
Institutions: RWTH Aachen University, Manipal Academy of Higher Education
Language: English
Subfield: Oral Surgery
Field: Dentistry
Domain: Health Sciences
Open Access status: bronze
OpenAlex ID: W2167174698